var EventEmitter = require("events").EventEmitter;
var event = new EventEmitter();
function a1(){
	console.log("我是处理函数1")
}
function a2(){
	console.log("我是处理函数2")
}
event.emit("one",a1);
event.emit("one",a2);
//解除指定函数的某个处理函数
event.removeListener("one",a1);
event.emit("one");
